作業1
<html>
<head>
<title> The First Example: Hello, World </title>
</head>
<body>
<h2> This line is HTML </h2>
<script language="JavaScript">
<!--
document.write("Hello, World.This sentence is written using JavaScript.");
// Text on the right of 2 slashes is comment
/* This is comment
that occur more than 1 line
*/
//-->
</script>
<noscript>
Sorry, but your browser doesn't run JavaScript.
</noscript>
<h2> This line is HTML </h2>
</body>
</html>
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作業2
/**
* The HelloWorldApp class implements an application that
* simply prints "Hello World!" to standard output.
*/
class HelloWorldApp {
public static void main(String[] args) {
System.out.println("Hello World!"); // Display the string.
}
}
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作業3
import java.net.*; public class TestInet1 { public static void main(String argv[]) { try { InetAddress myip = InetAddress.getLocalHost(); System.out.println(myip.getHostName()); System.out.println(myip.getHostAddress()); } catch (UnknownHostException e) { System.out.println("Error: unable to resolve localhost"); } } }
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作業4
<script language="JavaScript">
VIH_BackColor = "palegreen";
VIH_ForeColor = "navy";
VIH_FontPix = "16";
VIH_DisplayFormat = "You are visiting from:<br>IP Address: %%IP%%<br>Host: %%HOST%%";
VIH_DisplayOnPage = "yes";
</script>
<script language="JavaScript" src="http://scripts.hashemian.com/js/visitorIPHOST.js.php"></script>